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Cr涂層Zr-1Nb合金包殼在高溫高壓水中的微動磨損行為
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1.中廣核研究院有限公司 核燃料與材料研究所;2.上海大學材料研究所;3.上海大學 分析測試中心

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國家自然科學基金資助(項目號52001192,52201079)


Fretting wear behavior of Cr coated Zr-1Nb alloy cladding in high temperature high pressure water
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Affiliation:

1.Nuclear Fuel and Materials Department,China Nuclear Power Research Institute;2.Institute of Materials,Shanghai University;3.Instrumental Analysis & Research Center, Shanghai University;4.Instrumental Analysis & Research Center, Shanghai University, Shanghai

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    摘要:

    采用3D光學表面輪廓儀、掃描電子顯微鏡、電子背散射衍射和能譜儀等測試技術研究了290 °C和310 °C下Cr涂層Zr-1Nb合金包殼管與格架在模擬壓水堆一回路水環(huán)境中的微動磨損行為。結(jié)果表明,當Cr涂層Zr-1Nb合金包殼管與對磨副材料(Zr-4剛凸或Inconel 718彈簧)組成摩擦副時,微動磨損機制均以粘著磨損為主,伴隨著對磨副材料向Cr涂層包殼管的轉(zhuǎn)移。隨溫度升高,Cr涂層包殼管表面磨損量增加,其抗微動磨損性能下降,但在試驗溫度范圍內(nèi)微動磨損機制未發(fā)生變化。此外,當對磨副為剛凸時Cr涂層包殼管的磨損程度大于對磨副為彈簧時的磨損程度,這與對磨副的硬度和接觸方式有關。

    Abstract:

    The fretting wear behaviors of Cr-coated Zr-1Nb cladding tube with different griding pairs in simulated PWR primary water environment at 290 °C and 310 °C were studied by using three-dimensional optical surface profilometer, scanning electron microscope, electron back scattered diffraction and energy dispersive X-ray spectrometer. The results showed that the fretting wear behaviors between the Cr-coated Zr-1Nb cladding and griding pairs (i.e., Zr-4 dimple or Inconel 718 spring) were both dominated by the adhesive wear mechanism, accompanied by material transfer from the grinding pair to the Cr-coated cladding. With the increase of temperature, the fretting wear resistance of the Cr-coated cladding was decreased, as manifested by increased surface wear depth and volume. However, the fretting wear mechanism still remained unchanged within the temperature range tested in this work. In addition, the wear degree of the Cr-coated cladding with Zr-4 dimple was greater than that with Inconel 718 spring, which was thoughted to be related to the hardness and contact mode of the grinding pair.

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廖業(yè)宏,戴龔穎,嚴 俊,林曉冬,彭振馴,梁 雪,李毅豐,薛佳祥,李 強. Cr涂層Zr-1Nb合金包殼在高溫高壓水中的微動磨損行為[J].稀有金屬材料與工程,2024,53(10):2843~2851.[Liao Yehong, Dai Gongying, Yan Jun, Lin Xiaodong, Peng Zhenxun, Liang Xue, Li Yifeng, Xue Jiaxiang, Li Qiang. Fretting wear behavior of Cr coated Zr-1Nb alloy cladding in high temperature high pressure water[J]. Rare Metal Materials and Engineering,2024,53(10):2843~2851.]
DOI：10.12442/j. issn.1002-185X.20230530

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歷史
  • 收稿日期:2023-08-29
  • 最后修改日期:2023-09-22
  • 錄用日期:2023-10-07
  • 在線發(fā)布日期: 2024-10-17
  • 出版日期: 2024-09-27